16726980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1$

素因数の和:106

約数の個数: 144

約数和(自身を含む): 53512704

約数和(自身を除く): 36785724

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 23, 30, 31, 34, 46, 51, 60, 62, 68, 69, 85, 92, 93, 102, 115, 124, 138, 155, 170, 186, 204, 230, 255, 276, 310, 340, 345, 372, 391, 460, 465, 510, 527, 529, 620, 690, 713, 782, 930, 1020, 1054, 1058, 1173, 1380, 1426, 1564, 1581, 1587, 1860, 1955, 2108, 2116, 2139, 2346, 2635, 2645, 2852, 3162, 3174, 3565, 3910, 4278, 4692, 5270, 5290, 5865, 6324, 6348, 7130, 7820, 7905, 7935, 8556, 8993, 10540, 10580, 10695, 11730, 12121, 14260, 15810, 15870, 16399, 17986, 21390, 23460, 24242, 26979, 31620, 31740, 32798, 35972, 36363, 42780, 44965, 48484, 49197, 53958, 60605, 65596, 72726, 81995, 89930, 98394, 107916, 121210, 134895, 145452, 163990, 179860, 181815, 196788, 242420, 245985, 269790, 278783, 327980, 363630, 491970, 539580, 557566, 727260, 836349, 983940, 1115132, 1393915, 1672698, 2787830, 3345396, 4181745, 5575660, 8363490, 16726980]

約数ペア:

[(1, 16726980), (2, 8363490), (3, 5575660), (4, 4181745), (5, 3345396), (6, 2787830), (10, 1672698), (12, 1393915), (15, 1115132), (17, 983940), (20, 836349), (23, 727260), (30, 557566), (31, 539580), (34, 491970), (46, 363630), (51, 327980), (60, 278783), (62, 269790), (68, 245985), (69, 242420), (85, 196788), (92, 181815), (93, 179860), (102, 163990), (115, 145452), (124, 134895), (138, 121210), (155, 107916), (170, 98394), (186, 89930), (204, 81995), (230, 72726), (255, 65596), (276, 60605), (310, 53958), (340, 49197), (345, 48484), (372, 44965), (391, 42780), (460, 36363), (465, 35972), (510, 32798), (527, 31740), (529, 31620), (620, 26979), (690, 24242), (713, 23460), (782, 21390), (930, 17986), (1020, 16399), (1054, 15870), (1058, 15810), (1173, 14260), (1380, 12121), (1426, 11730), (1564, 10695), (1581, 10580), (1587, 10540), (1860, 8993), (1955, 8556), (2108, 7935), (2116, 7905), (2139, 7820), (2346, 7130), (2635, 6348), (2645, 6324), (2852, 5865), (3162, 5290), (3174, 5270), (3565, 4692), (3910, 4278)]