16879980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:128

約数の個数: 192

約数和(自身を含む): 57576960

約数和(自身を除く): 40696980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 19, 20, 26, 30, 34, 38, 39, 51, 52, 57, 60, 65, 67, 68, 76, 78, 85, 95, 102, 114, 130, 134, 156, 170, 190, 195, 201, 204, 221, 228, 247, 255, 260, 268, 285, 323, 335, 340, 380, 390, 402, 442, 494, 510, 570, 646, 663, 670, 741, 780, 804, 871, 884, 969, 988, 1005, 1020, 1105, 1139, 1140, 1235, 1273, 1292, 1326, 1340, 1482, 1615, 1742, 1938, 2010, 2210, 2278, 2470, 2546, 2613, 2652, 2964, 3230, 3315, 3417, 3484, 3705, 3819, 3876, 4020, 4199, 4355, 4420, 4556, 4845, 4940, 5092, 5226, 5695, 6365, 6460, 6630, 6834, 7410, 7638, 8398, 8710, 9690, 10452, 11390, 12597, 12730, 13065, 13260, 13668, 14807, 14820, 15276, 16549, 16796, 17085, 17420, 19095, 19380, 20995, 21641, 22780, 25194, 25460, 26130, 29614, 33098, 34170, 38190, 41990, 43282, 44421, 49647, 50388, 52260, 59228, 62985, 64923, 66196, 68340, 74035, 76380, 82745, 83980, 86564, 88842, 99294, 108205, 125970, 129846, 148070, 165490, 177684, 198588, 216410, 222105, 248235, 251940, 259692, 281333, 296140, 324615, 330980, 432820, 444210, 496470, 562666, 649230, 843999, 888420, 992940, 1125332, 1298460, 1406665, 1687998, 2813330, 3375996, 4219995, 5626660, 8439990, 16879980]

約数ペア:

[(1, 16879980), (2, 8439990), (3, 5626660), (4, 4219995), (5, 3375996), (6, 2813330), (10, 1687998), (12, 1406665), (13, 1298460), (15, 1125332), (17, 992940), (19, 888420), (20, 843999), (26, 649230), (30, 562666), (34, 496470), (38, 444210), (39, 432820), (51, 330980), (52, 324615), (57, 296140), (60, 281333), (65, 259692), (67, 251940), (68, 248235), (76, 222105), (78, 216410), (85, 198588), (95, 177684), (102, 165490), (114, 148070), (130, 129846), (134, 125970), (156, 108205), (170, 99294), (190, 88842), (195, 86564), (201, 83980), (204, 82745), (221, 76380), (228, 74035), (247, 68340), (255, 66196), (260, 64923), (268, 62985), (285, 59228), (323, 52260), (335, 50388), (340, 49647), (380, 44421), (390, 43282), (402, 41990), (442, 38190), (494, 34170), (510, 33098), (570, 29614), (646, 26130), (663, 25460), (670, 25194), (741, 22780), (780, 21641), (804, 20995), (871, 19380), (884, 19095), (969, 17420), (988, 17085), (1005, 16796), (1020, 16549), (1105, 15276), (1139, 14820), (1140, 14807), (1235, 13668), (1273, 13260), (1292, 13065), (1326, 12730), (1340, 12597), (1482, 11390), (1615, 10452), (1742, 9690), (1938, 8710), (2010, 8398), (2210, 7638), (2278, 7410), (2470, 6834), (2546, 6630), (2613, 6460), (2652, 6365), (2964, 5695), (3230, 5226), (3315, 5092), (3417, 4940), (3484, 4845), (3705, 4556), (3819, 4420), (3876, 4355), (4020, 4199)]