251940

素因数分解:

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

素因数の和:61

約数の個数: 96

約数和(自身を含む): 846720

約数和(自身を除く): 594780

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, 68, 76, 78, 85, 95, 102, 114, 130, 156, 170, 190, 195, 204, 221, 228, 247, 255, 260, 285, 323, 340, 380, 390, 442, 494, 510, 570, 646, 663, 741, 780, 884, 969, 988, 1020, 1105, 1140, 1235, 1292, 1326, 1482, 1615, 1938, 2210, 2470, 2652, 2964, 3230, 3315, 3705, 3876, 4199, 4420, 4845, 4940, 6460, 6630, 7410, 8398, 9690, 12597, 13260, 14820, 16796, 19380, 20995, 25194, 41990, 50388, 62985, 83980, 125970, 251940]

約数ペア:

[(1, 251940), (2, 125970), (3, 83980), (4, 62985), (5, 50388), (6, 41990), (10, 25194), (12, 20995), (13, 19380), (15, 16796), (17, 14820), (19, 13260), (20, 12597), (26, 9690), (30, 8398), (34, 7410), (38, 6630), (39, 6460), (51, 4940), (52, 4845), (57, 4420), (60, 4199), (65, 3876), (68, 3705), (76, 3315), (78, 3230), (85, 2964), (95, 2652), (102, 2470), (114, 2210), (130, 1938), (156, 1615), (170, 1482), (190, 1326), (195, 1292), (204, 1235), (221, 1140), (228, 1105), (247, 1020), (255, 988), (260, 969), (285, 884), (323, 780), (340, 741), (380, 663), (390, 646), (442, 570), (494, 510)]