19519330220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1230727}}^1$

素因数の和:1230810

約数の個数: 48

約数和(自身を含む): 44867419968

約数和(自身を除く): 25348089748

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 7930, 15860, 1230727, 2461454, 4922908, 6153635, 12307270, 15999451, 24614540, 31998902, 63997804, 75074347, 79997255, 150148694, 159994510, 300297388, 319989020, 375371735, 750743470, 975966511, 1501486940, 1951933022, 3903866044, 4879832555, 9759665110, 19519330220]

約数ペア:

[(1, 19519330220), (2, 9759665110), (4, 4879832555), (5, 3903866044), (10, 1951933022), (13, 1501486940), (20, 975966511), (26, 750743470), (52, 375371735), (61, 319989020), (65, 300297388), (122, 159994510), (130, 150148694), (244, 79997255), (260, 75074347), (305, 63997804), (610, 31998902), (793, 24614540), (1220, 15999451), (1586, 12307270), (3172, 6153635), (3965, 4922908), (7930, 2461454), (15860, 1230727)]